UNBURNED LIQUID HYDROCARBONS USING DIFFERENTIAL TEMPERATURE HYDROCARBON ANALYSERS

Paper #:
  • 2000-01-0506

Published:
  • 2000-03-06
Citation:
Andrews, G., Abbass, M., Abdelhalim, S., Farrar-Khan, J. et al., "UNBURNED LIQUID HYDROCARBONS USING DIFFERENTIAL TEMPERATURE HYDROCARBON ANALYSERS," SAE Technical Paper 2000-01-0506, 2000, https://doi.org/10.4271/2000-01-0506.
Pages:
19
Abstract:
The use of two or three FID hydrocarbon analysers for the determination of condensable or liquid unburned fuel is described. Each FID has upstream pumps and filters in separate sample conditioning systems operating at three different temperatures of 180C, 50C and 2C. The 50C system could operate at any temperature up to 100C, the use of 50C was because this was the temperature used for sampling diesel particulates. The difference in the three hydrocarbon readings was used to determined on a mass basis the condensable UHC over the sample temperature difference of either 180C to 2C or 180C to 50C. The latter hydrocarbon difference was shown to be close to the particulate fuel fraction of the SOF. A range of applications of this technique to both diesel and spark ignition engines are described, including the warm-up of a Ford CVH SI engine and the influence of nozzle sac volume on condensable hydrocarbon emissions in a Perkins 4-236 diesel.
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